Ice creeper.



fiector L is slip ed over the body of the lamp and rests on a ead f andthe s ring wire is hooked into two holes is in t e reflector, while theloop I: engages the lower art of the globe or of the outer one of two gobes. In

, the case where two globes I, I are used, the

top of the wire loop 70- springs into a depression at the bottom of theouter globe I, and the outer globe supports the inner globe I by meansof a perforated metal gallery M, the whole being pressed hard againstthe body of thelamp by means of the spring, When a single globe Iisused, the top of the loop is partially enters the hole in the bottom ofthe said globe I. The secondary air supply enters beneath the reflectorL, asses downbetween the two globes I and and enters the bottom of theinner globeI.

In the construction shown in Fig. 3 in which the heater A is used forpoor gases, for instance, Mond gas or Dowson gas, or any other gas oflow calorific value, we perforate the nozzle at a, so as to burn aportion of the mixture of gas and air underneath the lower part of theheater, in addition to what is burned inside the mantle, tointensify theregenerative efiect.

In the modified construction shown in Figs. 4 and 4 the gauze disk B isdispensed with and a rod S of star section is arranged centrally of thenozzle B, the top of which rod is secured to the central diaphragm A ofthe heater. In this way a certain amount of heat is transferred to thedia hragm, which is naturally considerably coo er than the inside of theheater on account of its being met directly by the cool mixture.

I claim 1. In an inverted incandescent gas lamp, the combination withthe burner tube, of a gas and air heater connected to said tube, and anozzle connected to said heater, said nozzle including a'heavy body ofmetal and a surface of contact for the mantle of nonconducting material,as and for the purpose 2. In an inverted incandescent gas lamp, thecombination with the burner tube of a gas and air heater connected tosaid tube,

said heater comprising two cones disposedbase to base and a diaphragmperforated at its edges fixed between said bases, and a nozzle connectedto said heater.

3. In an inverted incandescent gas lamp, the combination with the burnertube of a gas and air heater connected to said tube, said heatercomprising two cones disposed base to base and a diaphragm erforated atits edges. fixed between said ases, swivel catches forholding said conestogether, and a nozzle connected to'said heater.

4. In an inverted incandescent gas lamp, the combination with the burnertube, of a gas and air heater connectedto said tube, said-heatercomprising two cones disposed base to base, a thermostat composed of twostrips of different metal located within the heater, and a nozzleconnected to said heater.

5. In an inverted incandescent gas lamp, the combination with the burner.tube of a gas and air heater connected to said tube, said heatercomprising two cones disposed base to base and a diaphragm perforated atits edge fixed between said bases, and a perforated nozzle' connected tosaid heater.

6. In an inverted incandescent gas lamp, the combination with the burnertube, of a regulating screw entering said tube, said screw having adiameter of approximately the internal diameter of the tube, a gas andair heater connected to the tube, said heater comprising two conesdisposed base to base and a diaphragm perforated at its edges fixedbetween the bases, and a nozzle connected to said heater.

7. In an inverted incandescent gas lamp, the combination with the burnertube of a gas and air heater,.said heater com rising two shallow conesdisposed base to ase a perforated diaphragm fixed between the ases ofthe cones, a nozzle a slide mounted between the top of the nozzle andits point of attachment to the heater, and a gauze disk fitted to saidslide.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JAMES KEITH.

- GEORGE KEITH.

Witnesses:

WALLACE CnANs'roN FAIRWEATHER, Jonn MGCLEARY, Jr.

J. KINSEL. ICE OBEEPER. APPLICATION FILED JUNE 12,1908.

Patented Apr. 13, 1909.

v avweutoz JG05K675665 All!!!

